Description: This section applies a scale factor to any or all X, Y, and Z components for some or all nodes in a global or local direction. The scale factor may be positive or negative (change the sign on any or all of the X, Y, Z components). The parts will be magnified if the scale factor is greater than 1 and reduced if the scale factor is less than 1. The user may reflect and/or enlarge or reduce a part without retaining a copy of the original grids/elements.
Usage:
1. DSI prompts:
> SELECT NODES
• Once the user selects the desired nodes and clicks DONE, DSI prompts:
> CREATE LOCAL COORDINATES
> PICK NODE/PT FOR ORIGIN
• DSI prompts the user to create a local coordinate system. A thorough explanation of how to create a local coordinate system is covered in Local Coordinate System, Section 2.16.
2. Once the desired coordinate system is acquired, it will be displayed on the screen and the prompt will read:
> ENTER X, Y, Z SCALE FACTORS
• All real numbers are valid. ZEROS or BLANKS will default to ( +1 ).
EXAMPLES:
• 1, -1, 1 will reflect the selected nodes across the XZ plane (Y-direction). All Y components will be multiplied by ( -1 ).
• -2, 1, 0.5 will magnify the X components by two times their size and reflect the nodes across the YZ plane (X-direction). These coordinates will not affect the Y components, but they will shrink the Z-components by half their size and reflect the nodes on the original side of the XY plane.
• DONE returns the user to the NODE OPTIONS menu.